Mage/Theme/Assembly/Children of the Tree
For tens of thousands of years before the Martyr's tree took root in Philadelphia, magic was alive in the world. Even today, Unnamed Orders exist in the far reaches of the world, forming together in small cadres of like minded will workers, or upholding ancient traditions of remote cultures that have yet to contain anything of interest to the Diamond orders. Their traditions, their power, their wisdom are no less than that of a similar magus of the Diamond. The only difference is the clout behind the word they claim adherence to. A thearch of the Silver Ladder has the weight of a world spanning organization of warrior priests and philosopher kings behind it, while an Arrow has the martial backing of a ten thousand strong legion of warrior wizards backing his play. The Unnamed have only themselves.
When the eponymous Martyr brought sense to Gaveston's creation, it created the breathing room and deference of Emeritus necessary to allow the Children of the Tree to coalesce. One by one, pilgrims from the Unnamed Nations paid homage at the tree, honoring the sacrifice of the Martyr and seeking to uphold her memory and her traditions. Through careful analysis of the tree and its fruits over the centuries, the Children of the Tree have created a cogent and cohesive metaphysic relating to their structure and governance.
They seek the counsel of the Elder, usually the oldest among the Children in real years, regardless of their power. The Elder advises, and rarely leads. The Elder is an administrator, a delegator, and consults frequently with the Emissaries before rendering opinions. Those opinions are chronicled by the Tale Keeper, and stored in the Lorehouse of the Tree. Each emissary, representing each of the paths of the Supernal, holds primacy of opinion in its field. On matters concerning the Shadow realm, the Nation defers to the Emissary of the Spirit Nation. When it comes to matters of the Supernal, the Emissary of the Sky Nation is the one receiving the call. Their input and advice is weighed heavily by the Elder and the council of Emissaries before decisions are made.
This ease of delegation and absence of ego appealed, at least in an ideological sense, to the early Free Councilors. It's a tradition that persists to this day within both sides of the assembly.
The Unnamed Nations generally and the Children of the Tree specifically seek to undo the pain and strife colonization has caused in the area. Through study of the tree's mysteries and close association with the Diamond Orders, they attempt to counter what the Children call The Great Hubris of Gaveston: The threat of sentence for a wise elder speaking in defense of her people and appealing to the compassion and reason of the so-called wise.
They think nothing of speaking truth to power, and recognize that wisdom can exist in the smallest of voice or the least of people. A truth manifestly proved by the awakenings of otherwise ordinary persons.